Akash Vibhute / TCA9548A

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tca9548a.cpp

00001 /**
00002  *  TCA9548A library
00003  *
00004  *  @author Akash Vibhute
00005  *  @author < akash . roboticist [at] gmail . com >
00006  *  @version 0.1
00007  *  @date May/24/2016
00008  */
00009  
00010 #include "tca9548a.h"
00011  
00012 TCA9548A::TCA9548A( PinName sda, PinName scl, uint8_t i2c_address, PinName resetPin, uint32_t hz ) : i2c_(sda, scl), reset_pin(resetPin)
00013 {
00014     i2c_addr = i2c_address;
00015     i2c_.frequency(hz);
00016 }
00017 
00018  
00019 void TCA9548A::select( uint8_t channel )
00020 {
00021     char data; //create temporary char buffer
00022     
00023     if(channel >= 8) return;
00024     
00025     data = 1 << channel;
00026     i2c_.write( i2c_addr << 1, &data, 1);
00027 }
00028  
00029 void TCA9548A::reset( )
00030 {
00031     reset_pin = 0;
00032     wait_ms(1);
00033     reset_pin = 1;
00034 }
00035
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